All names: 0202-055, WDJ020511.61-051754.30, SDSS J020512.19-051750.8, Gaia DR2 2490975272405858048, WD 0205-053, Gaia DR3 2490975272405858048, WD 0202-055, J0205-0517, Gaia EDR3 2490975272405858048
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | O'Brien et al. 2024 | Caron et al. 2023 | Blouin et al. 2019 | Leggett et al. 2018 | Gaia DR2 | Stilism | Bergeron et al. 2005 | Vincent et al. 2024 | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 02 05 12.64 (0.1) | 02 05 12.61 (0.2) | 02 05 12.64 | 02 05 12.61 | 02 05 10.49 | |||||||||
| Declination | -05 17 48.02 (0.1) | -05 17 48.21 (0.2) | -05 17 48.02 | -05 17 48.21 | -05 17 46.68 | |||||||||
| Spectral type | DC | DC | DC | DC | DC12.2 | DC | DC | |||||||
| Effective temperature | [K] | 4080.0 (62) | 4084.0 (97) | 4274.0 (25) | 3920.0 (45) | 4124.0 (52) | 4170.0 (60) | 3944.0 (96) | ||||||
| log(g) | [cgs] | 7.85 (0.03) | 7.84 (0.07) | 7.99 (0.01) | 7.72 (0.03) | 8.03 (0.04) | 8.00 (0) | 7.76 (0.04) | ||||||
| Mass | [M☉] | 0.488 (0.02) | 0.481 (0.03) | 0.568 (0.01) | 0.419 (0.02) | 0.596 (0.03) | 0.58 | 0.438 (0.03) | ||||||
| log(Luminosity) | [L☉] | |||||||||||||
| Cooling age | [Gyr] | 8.5100 | 6.6250 (0.4) | 8.9560 (0.3) | 8.5600 | |||||||||
| log(H/He) | ||||||||||||||
| log(C/He) | ||||||||||||||
| log(Ca/He) | ||||||||||||||
| log(Ca/H) | ||||||||||||||
| log(C/H) | ||||||||||||||
| log(N/H) | ||||||||||||||
| log(O/H) | ||||||||||||||
| log(Na/H) | ||||||||||||||
| log(Mg/H) | ||||||||||||||
| log(Al/H) | ||||||||||||||
| log(Si/H) | ||||||||||||||
| log(P/H) | ||||||||||||||
| log(S/H) | ||||||||||||||
| log(Sc/H) | ||||||||||||||
| log(Ti/H) | ||||||||||||||
| log(Cr/H) | ||||||||||||||
| log(Mn/H) | ||||||||||||||
| log(Fe/H) | ||||||||||||||
| log(Ni/H) | ||||||||||||||
| Parallax | [mas] | 31.08 (0.2) | 31.08 (0.2) | 30.90 (0.2) | 30.90 (0.2) | 34.12 (0.6) | 30.90 (0.2) | 31.08 | 30.90 (0.2) | |||||
| Distance | [pc] | 32.18 (0.2) | 32.18 (0.2) | 32.36 (0.2) | 32.36 (0.2) | 29.31 (0.5) | 32.36 (0.2) | 30.00 | 32.18 | 32.36 (0.2) | ||||
| Composition | H | H | H | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 960.1152272 (0.2) | 960.2243142 (0.5) | 960.2243142 | ||||||||||
| Proper motion (declination) | [mas/yr] | 392.3546434 (0.1) | 392.9840315 (0.3) | 392.9840315 | ||||||||||
| Variability | ||||||||||||||
| Magnetic | ||||||||||||||
| Bd | [MG] | |||||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | ||||||||||||||
| B magnitude | 19.91 | |||||||||||||
| V magnitude | 18.59 | |||||||||||||
| R magnitude | 17.85 | |||||||||||||
| I magnitude | 17.17 | |||||||||||||
| J magnitude | 16.56 (0.03) | 16.68 (0.1) | 16.56 (0.03) | |||||||||||
| H magnitude | 16.53 (0.03) | 16.14 (0.2) | 16.53 (0.03) | |||||||||||
| K magnitude | 16.46 (0.04) | 16.46 (0.04) | ||||||||||||
| u magnitude | 21.31 (0.03) | 21.31 (0.2) | ||||||||||||
| g magnitude | 19.21 (0.01) | |||||||||||||
| r magnitude | 18.11 (0.008) | |||||||||||||
| i magnitude | 17.61 (0.007) | |||||||||||||
| z magnitude | 17.32 (0.01) | |||||||||||||
| G magnitude | 18.11 (0.02) | 18.14 | 18.11 | 18.14 | ||||||||||
| BP magnitude | 18.85 (0.02) | 18.88 | 18.88 | |||||||||||
| RP magnitude | 17.33 (0.008) | 17.35 | 17.35 | |||||||||||
| Pan g magnitude | 19.08 (0.009) | 19.06 (0.02) | 19.08 (0.01) | |||||||||||
| Pan r magnitude | 18.10 (0.01) | 18.11 (0.02) | 18.10 (0.01) | |||||||||||
| Pan i magnitude | 17.65 (0.003) | 17.66 (0.006) | 17.65 (0.003) | |||||||||||
| Pan z magnitude | 17.48 (0.005) | 17.47 (0.008) | 17.48 (0.004) | |||||||||||
| Pan y magnitude | 17.40 (0.009) | 17.44 (0.01) | 17.40 (0.009) | |||||||||||
| E(B-V) | 0.000 | |||||||||||||
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.